Enable Chrome to tweak search engines for some locales

components/search_engines/template_url_prepopulate_data.h

Index: components/search_engines/template_url_prepopulate_data.h
diff --git a/components/search_engines/template_url_prepopulate_data.h b/components/search_engines/template_url_prepopulate_data.h
index 210a0f50f2345bf1ed88a0cf0d58767176ff8ff5..52474eb33654d6f6fd444aad198e8000ca68202b 100644
--- a/components/search_engines/template_url_prepopulate_data.h
+++ b/components/search_engines/template_url_prepopulate_data.h
@@ -35,13 +35,23 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 // file then it returns the version specified there.
 int GetDataVersion(PrefService* prefs);
 
-// Loads the set of TemplateURLs from the prepopulate data. On return,
+// Returns the prepopulated URLs for the current country.
 // |default_search_provider_index| is set to the index of the default search
-// provider.
+// provider within the returned vector.
 std::vector<std::unique_ptr<TemplateURLData>> GetPrepopulatedEngines(
     PrefService* prefs,
     size_t* default_search_provider_index);
 
+#if defined(OS_ANDROID)
+// Returns the prepopulated URLs associated with |locale|, if it differs from
+// the current country.  |locale| should be a two-character uppercase ISO 3166-1
+// country code. If the given locale is the same as the existing locale, return

[Peter Kasting, 2016/09/23 01:28:36]

Nit: returns

[Ian Wen, 2016/09/23 22:01:57]

Done.

+// an empty vector.
+std::vector<std::unique_ptr<TemplateURLData>> GetLocalPrepopulatedEngines(
+    const std::string& locale,
+    PrefService* prefs);
+#endif
+
 // Returns all prepopulated engines for all locales. Used only by tests.
 std::vector<const PrepopulatedEngine*> GetAllPrepopulatedEngines();